<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片式图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>
    </el-card>
    <!-- 表格区域 -->
    <el-table :data="goodsList" border stripe>
      <el-table-column type="index" label="#"></el-table-column>
      <el-table-column prop="goods_name" label="商品名称"></el-table-column>
      <el-table-column prop="goods_price" label="商品价格(元)" width="95px"></el-table-column>
      <el-table-column prop="goods_weight" label="商品重量" width="70px"></el-table-column>
      <el-table-column prop="add_time" label="创建时间" width="140px">
        <template scope="{row}">
          {{row.add_time | dataFormate}}
        </template>
      </el-table-column>
      <el-table-column label="操作" width="130px">
        <template scope="{row}">
          <el-button type="primary" size="mini" icon="el-icon-edit">
          </el-button>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(row.goods_id)">
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页区域 -->
    <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum" :page-sizes="[5,10,15,20]" :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper" :total="total" background>
    </el-pagination>
  </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        // 搜索的参数
        query: '',
        // 当前的页码
        pagenum: 1,
        // 每页显示的条数
        pagesize: 10
      },
      // 渲染的数据
      goodsList: [],
      // 商品的条数
      total: 0
    }
  },
  methods: {
    goAddPage () {
      this.$router.push('/goods/add')
    },
    async removeById (id) {
      const confirmStr = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmStr !== 'confirm') {
        return this.$Message.error('已取消删除')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) return this.$Message.error('删除失败')
      this.$Message.success('删除成功')
      this.getGoodsList()
    },
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      // console.log(res.data)
      this.goodsList = res.data.goods
      this.total = res.data.total
    }
  },
  computed: {},
  watch: {},
  filters: {},
  components: {},
  created () {
    this.getGoodsList()
  },
  mounted () { }
}
</script>

<style scoped lang='less'>
.el-pagination {
  margin: 15px 0;
}
</style>
